/*****************************************************************************
* image.c : wrapper for image reading/writing facilities
*****************************************************************************
- * Copyright (C) 2004 VideoLAN
+ * Copyright (C) 2004 the VideoLAN team
* $Id$
*
* Author: Gildas Bazin <gbazin@videolan.org>
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/**
static int ImageWriteUrl( image_handler_t *, picture_t *,
video_format_t *, video_format_t *, const char * );
+static picture_t *ImageConvert( image_handler_t *, picture_t *,
+ video_format_t *, video_format_t * );
+static picture_t *ImageFilter( image_handler_t *, picture_t *,
+ video_format_t *, const char *psz_module );
+
static decoder_t *CreateDecoder( vlc_object_t *, video_format_t * );
static void DeleteDecoder( decoder_t * );
static encoder_t *CreateEncoder( vlc_object_t *, video_format_t *,
video_format_t * );
static void DeleteEncoder( encoder_t * );
static filter_t *CreateFilter( vlc_object_t *, es_format_t *,
- video_format_t * );
+ video_format_t *, const char * );
static void DeleteFilter( filter_t * );
static vlc_fourcc_t Ext2Fourcc( const char * );
-static const char *Fourcc2Ext( vlc_fourcc_t );
+/*static const char *Fourcc2Ext( vlc_fourcc_t );*/
/**
* Create an image_handler_t instance
p_image->pf_read_url = ImageReadUrl;
p_image->pf_write = ImageWrite;
p_image->pf_write_url = ImageWriteUrl;
+ p_image->pf_convert = ImageConvert;
+ p_image->pf_filter = ImageFilter;
return p_image;
}
video_format_t *p_fmt_in,
video_format_t *p_fmt_out )
{
- picture_t *p_pic;
+ picture_t *p_pic = NULL, *p_tmp;
/* Check if we can reuse the current decoder */
if( p_image->p_dec &&
}
p_block->i_pts = p_block->i_dts = mdate();
- p_pic = p_image->p_dec->pf_decode_video( p_image->p_dec, &p_block );
- p_image->p_dec->pf_decode_video( p_image->p_dec, &p_block );
+ while( (p_tmp = p_image->p_dec->pf_decode_video( p_image->p_dec, &p_block ))
+ != NULL )
+ {
+ if ( p_pic != NULL )
+ p_pic->pf_release( p_pic );
+ p_pic = p_tmp;
+ }
- if( !p_pic )
+ if( p_pic == NULL )
{
- msg_Dbg( p_image->p_parent, "no image decoded" );
+ msg_Warn( p_image->p_parent, "no image decoded" );
return 0;
}
if( !p_fmt_out->i_chroma )
p_fmt_out->i_chroma = p_image->p_dec->fmt_out.video.i_chroma;
+ if( !p_fmt_out->i_width && p_fmt_out->i_height )
+ p_fmt_out->i_width = p_fmt_out->i_height
+ * p_image->p_dec->fmt_out.video.i_aspect
+ / VOUT_ASPECT_FACTOR;
+ if( !p_fmt_out->i_height && p_fmt_out->i_width )
+ p_fmt_out->i_height = p_fmt_out->i_width * VOUT_ASPECT_FACTOR
+ / p_image->p_dec->fmt_out.video.i_aspect;
if( !p_fmt_out->i_width )
p_fmt_out->i_width = p_image->p_dec->fmt_out.video.i_width;
if( !p_fmt_out->i_height )
{
p_image->p_filter =
CreateFilter( p_image->p_parent, &p_image->p_dec->fmt_out,
- p_fmt_out );
+ p_fmt_out, NULL );
if( !p_image->p_filter )
{
p_image->p_enc->fmt_in.video.i_width != p_fmt_in->i_width ||
p_image->p_enc->fmt_in.video.i_height != p_fmt_in->i_height )
{
- picture_t *p_pif;
+ picture_t *p_tmp_pic;
if( p_image->p_filter )
if( p_image->p_filter->fmt_in.video.i_chroma != p_fmt_in->i_chroma ||
p_image->p_filter =
CreateFilter( p_image->p_parent, &fmt_in,
- &p_image->p_enc->fmt_in.video );
+ &p_image->p_enc->fmt_in.video, NULL );
if( !p_image->p_filter )
{
pf_release = p_pic->pf_release;
p_pic->pf_release = PicRelease; /* Small hack */
- p_pif = p_image->p_filter->pf_video_filter( p_image->p_filter, p_pic );
+ p_tmp_pic =
+ p_image->p_filter->pf_video_filter( p_image->p_filter, p_pic );
p_pic->pf_release = pf_release;
- p_pic = p_pif;
- }
- p_block = p_image->p_enc->pf_encode_video( p_image->p_enc, p_pic );
+ p_block = p_image->p_enc->pf_encode_video( p_image->p_enc, p_tmp_pic );
+
+ p_image->p_filter->pf_vout_buffer_del( p_image->p_filter, p_tmp_pic );
+ }
+ else
+ {
+ p_block = p_image->p_enc->pf_encode_video( p_image->p_enc, p_pic );
+ }
if( !p_block )
{
return p_block ? VLC_SUCCESS : VLC_EGENERIC;
}
+/**
+ * Convert an image to a different format
+ *
+ */
+
+static picture_t *ImageConvert( image_handler_t *p_image, picture_t *p_pic,
+ video_format_t *p_fmt_in,
+ video_format_t *p_fmt_out )
+{
+ void (*pf_release)( picture_t * );
+ picture_t *p_pif;
+
+ if( !p_fmt_out->i_width && !p_fmt_out->i_height &&
+ p_fmt_out->i_sar_num && p_fmt_out->i_sar_den &&
+ p_fmt_out->i_sar_num * p_fmt_in->i_sar_den !=
+ p_fmt_out->i_sar_den * p_fmt_in->i_sar_num )
+ {
+ p_fmt_out->i_width =
+ p_fmt_in->i_sar_num * (int64_t)p_fmt_out->i_sar_den *
+ p_fmt_in->i_width / p_fmt_in->i_sar_den / p_fmt_out->i_sar_num;
+ p_fmt_out->i_visible_width =
+ p_fmt_in->i_sar_num * (int64_t)p_fmt_out->i_sar_den *
+ p_fmt_in->i_visible_width / p_fmt_in->i_sar_den /
+ p_fmt_out->i_sar_num;
+ }
+
+ if( !p_fmt_out->i_chroma ) p_fmt_out->i_chroma = p_fmt_in->i_chroma;
+ if( !p_fmt_out->i_width )
+ p_fmt_out->i_width = p_fmt_out->i_visible_width = p_fmt_in->i_width;
+ if( !p_fmt_out->i_height )
+ p_fmt_out->i_height = p_fmt_out->i_visible_height = p_fmt_in->i_height;
+ if( !p_fmt_out->i_sar_num ) p_fmt_out->i_sar_num = p_fmt_in->i_sar_num;
+ if( !p_fmt_out->i_sar_den ) p_fmt_out->i_sar_den = p_fmt_in->i_sar_den;
+ if( !p_fmt_out->i_aspect ) p_fmt_out->i_aspect = p_fmt_in->i_aspect;
+
+ if( p_image->p_filter )
+ if( p_image->p_filter->fmt_in.video.i_chroma != p_fmt_in->i_chroma ||
+ p_image->p_filter->fmt_out.video.i_chroma != p_fmt_out->i_chroma )
+ {
+ /* We need to restart a new filter */
+ DeleteFilter( p_image->p_filter );
+ p_image->p_filter = 0;
+ }
+
+ /* Start a filter */
+ if( !p_image->p_filter )
+ {
+ es_format_t fmt_in;
+ es_format_Init( &fmt_in, VIDEO_ES, p_fmt_in->i_chroma );
+ fmt_in.video = *p_fmt_in;
+
+ p_image->p_filter =
+ CreateFilter( p_image->p_parent, &fmt_in, p_fmt_out, NULL );
+
+ if( !p_image->p_filter )
+ {
+ return NULL;
+ }
+ }
+ else
+ {
+ /* Filters should handle on-the-fly size changes */
+ p_image->p_filter->fmt_in.video = *p_fmt_in;
+ p_image->p_filter->fmt_out.video = *p_fmt_out;
+ }
+
+ pf_release = p_pic->pf_release;
+ p_pic->pf_release = PicRelease; /* Small hack */
+ p_pif = p_image->p_filter->pf_video_filter( p_image->p_filter, p_pic );
+ p_pic->pf_release = pf_release;
+
+ if( p_fmt_in->i_chroma == p_fmt_out->i_chroma &&
+ p_fmt_in->i_width == p_fmt_out->i_width &&
+ p_fmt_in->i_height == p_fmt_out->i_height )
+ {
+ /* Duplicate image */
+ p_pif = p_image->p_filter->pf_vout_buffer_new( p_image->p_filter );
+ if( p_pif ) vout_CopyPicture( p_image->p_parent, p_pif, p_pic );
+ }
+
+ return p_pif;
+}
+
+/**
+ * Filter an image with a psz_module filter
+ *
+ */
+
+static picture_t *ImageFilter( image_handler_t *p_image, picture_t *p_pic,
+ video_format_t *p_fmt, const char *psz_module )
+{
+ void (*pf_release)( picture_t * );
+ picture_t *p_pif;
+
+ /* Start a filter */
+ if( !p_image->p_filter )
+ {
+ es_format_t fmt;
+ es_format_Init( &fmt, VIDEO_ES, p_fmt->i_chroma );
+ fmt.video = *p_fmt;
+
+ p_image->p_filter =
+ CreateFilter( p_image->p_parent, &fmt, &fmt.video, psz_module );
+
+ if( !p_image->p_filter )
+ {
+ return NULL;
+ }
+ }
+ else
+ {
+ /* Filters should handle on-the-fly size changes */
+ p_image->p_filter->fmt_in.video = *p_fmt;
+ p_image->p_filter->fmt_out.video = *p_fmt;
+ }
+
+ pf_release = p_pic->pf_release;
+ p_pic->pf_release = PicRelease; /* Small hack */
+ p_pif = p_image->p_filter->pf_video_filter( p_image->p_filter, p_pic );
+ p_pic->pf_release = pf_release;
+
+ return p_pif;
+}
+
/**
* Misc functions
*
{ VLC_FOURCC('p','g','m','y'), "pgmyuv" },
{ VLC_FOURCC('p','b','m',' '), "pbm" },
{ VLC_FOURCC('p','a','m',' '), "pam" },
+ { VLC_FOURCC('t','g','a',' '), "tga" },
+ { VLC_FOURCC('b','m','p',' '), "bmp" },
+ { VLC_FOURCC('p','n','m',' '), "pnm" },
+ { VLC_FOURCC('x','p','m',' '), "xpm" },
+ { VLC_FOURCC('x','c','f',' '), "xcf" },
+ { VLC_FOURCC('p','c','x',' '), "pcx" },
+ { VLC_FOURCC('g','i','f',' '), "gif" },
+ { VLC_FOURCC('t','i','f','f'), "tif" },
+ { VLC_FOURCC('t','i','f','f'), "tiff" },
+ { VLC_FOURCC('l','b','m',' '), "lbm" },
{ 0, NULL }
};
return 0;
}
+/*
static const char *Fourcc2Ext( vlc_fourcc_t i_codec )
{
int i;
return NULL;
}
+*/
static void video_release_buffer( picture_t *p_pic )
{
{
p_enc->fmt_in.video.i_width = fmt_out->i_width;
p_enc->fmt_in.video.i_height = fmt_out->i_height;
+
+ if( fmt_out->i_visible_width > 0 &&
+ fmt_out->i_visible_height > 0 )
+ {
+ p_enc->fmt_in.video.i_visible_width = fmt_out->i_visible_width;
+ p_enc->fmt_in.video.i_visible_height = fmt_out->i_visible_height;
+ }
+ else
+ {
+ p_enc->fmt_in.video.i_visible_width = fmt_out->i_width;
+ p_enc->fmt_in.video.i_visible_height = fmt_out->i_height;
+ }
+ }
+ else if( fmt_out->i_sar_num && fmt_out->i_sar_den &&
+ fmt_out->i_sar_num * fmt_in->i_sar_den !=
+ fmt_out->i_sar_den * fmt_in->i_sar_num )
+ {
+ p_enc->fmt_in.video.i_width =
+ fmt_in->i_sar_num * (int64_t)fmt_out->i_sar_den * fmt_in->i_width /
+ fmt_in->i_sar_den / fmt_out->i_sar_num;
+ p_enc->fmt_in.video.i_visible_width =
+ fmt_in->i_sar_num * (int64_t)fmt_out->i_sar_den *
+ fmt_in->i_visible_width / fmt_in->i_sar_den / fmt_out->i_sar_num;
}
+
p_enc->fmt_in.video.i_frame_rate = 25;
p_enc->fmt_in.video.i_frame_rate_base = 1;
}
static filter_t *CreateFilter( vlc_object_t *p_this, es_format_t *p_fmt_in,
- video_format_t *p_fmt_out )
+ video_format_t *p_fmt_out,
+ const char *psz_module )
{
filter_t *p_filter;
p_filter->fmt_out = *p_fmt_in;
p_filter->fmt_out.i_codec = p_fmt_out->i_chroma;
p_filter->fmt_out.video = *p_fmt_out;
- p_filter->p_module = module_Need( p_filter, "video filter2", 0, 0 );
+ p_filter->p_module = module_Need( p_filter, "video filter2", psz_module,
+ 0 );
if( !p_filter->p_module )
{
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